BIOS image whose name gives only G550, with no brand or board number stated, so the exact device cannot be confirmed from the label. G550 matches a Lenovo notebook model name, but the file itself does not prove that. The 2.00 MB size corresponds to a 16 Mbit SPI flash chip. A technician would write such a dump with an external programmer to recover a board after a failed update. Identify the motherboard number on the PCB before using it, read and keep the original chip, and confirm the chip capacity is 2 MB.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @biosarchive. Enginerys does not host this file.
How to open a .bin file
A raw, byte-for-byte image of a flash chip: the main BIOS / UEFI, the embedded-controller (EC) firmware, or both.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →